Chainload FreeDOS from GRUB2

[Luca Capello]

Hello!

I'm trying to boot the FreeDOS boot floppy [1] from GRUB2 with the
loopback module under QEMU (but the same happens on a real system).
On the GRUB2 console I have:
=====
grub> loobpack (fd0) (hd0,1)/boot/fdboot.img
grub> chainloader (hd0,1)/boot/fdboot.img
grub> boot
FreeDOS
=====

And the system freezes.

I also tried the DOS 6.22 fd image at [2], but with the same commands
above I obtain:
=====
Non-System disk or disk error
Replace and press any key when ready
=====

BTW, both fd images works OK when tested directly in QEMU, i.e. with
`qemu -fda $IMG`.

Now, is it possible to load a fd image from GRUB2?  And if yes,
where's the error in my case?

Thx, bye,
Gismo / Luca

Footnotes: 
[1] 
http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/distributions/1.0/fdboot.img
[2] http://www.bootdisk.com/bootdisk.htm

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